Airworthiness Directive · Amendment 39-14456 · Bombardier Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), and CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604) Airplanes
Bombardier Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), and CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604) Airplanes
This AD applies to Bombardier Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), and CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604) airplanes, certificated in any category; as identified in Table 1 of this AD.
| Bombardier airplane model | Affected serial numbers |
|---|---|
| CL-600-1A11 (CL-600) | 1004 through 1085 inclusive. |
| CL-600-2A12 (CL-601) | 3001 through 3066 inclusive. |
| CL-600-2B16 (CL-601-3A and CL-601-3R) | 5001 through 5194 inclusive. |
| CL-600-2B16 (CL-604) | 5301 through 5564 inclusive. |
The FAA is adopting a new airworthiness directive (AD) for certain Bombardier Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), and CL-600-2B16 (CL-601-3A, CL-601-3R, & CL-604) airplanes. This AD requires modifying the rudder balance spring assembly by installing a new adjustable balance spring, and rigging the assembly to suit the rudder of each airplane. This AD results from production inspections that showed that the spring assembly that controls rudder balance may not have the correct pre-load on some airplanes. We are issuing this AD to prevent uncommanded yaw movements and consequent reduced controllability of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
The term “service bulletin,” as used in this AD, means the Accomplishment Instructions of the applicable service bulletin in Table 2 of this AD.
| Bombardier airplane model | Bombardier service bulletin |
|---|---|
| CL-600-1A11 (CL-600) | 600-0714, including Appendix 1 and excluding Appendix 2, dated April 4, 2003. |
| CL-600-2A12 (CL-601), and CL-600-2B16 (CL-601-3A and CL-601-3R) | (601-0549, including Appendix 1 and excluding Appendix 2, dated April 4, 2003. |
| CL-600-2B16 (CL-604) | 604-27-013, including Appendix 1 and excluding Appendix 2, dated April 4, 2003. |
Within 12 months after the effective date of this AD: Modify and rig the adjustable rudder balance spring assembly for the rudder control surface, in accordance with the Accomplishment Instructions of the applicable service bulletin specified in Table 2 of this AD. Where the service bulletin specifies contacting Bombardier for instructions on making certain adjustments: Before further flight, adjust according to a method approved by the Manager, New York Aircraft Certification Office (ACO), FAA; or Transport Canada Civil Aviation (TCCA) (or its delegated agent).
Although the service bulletins referenced in this AD specify to submit certain information to the manufacturer, this AD does not include that requirement.
(i) After the effective date of this AD, no person may install on any airplane a rudder balance spring assembly unless it has been modified and rigged in accordance with paragraph (g) of this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
